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United Financial Planning Group
Tax Planning· Updated · 6 min read

Financial Planning for Business Owners: Taxes, Retirement, and Succession

How business owners can coordinate cash flow, taxes, retirement plans, health coverage, and succession, with a retirement plan comparison and annual checklist.

In this article

Business owners often manage personal and business finances that affect each other: cash flow, taxes, retirement savings, health coverage, and succession. This guide explains how to coordinate them, compares common self-employed retirement plans, and offers an annual checklist. Options vary by entity and income, and each involves trade-offs.

Why Business and Personal Finances Need to Be Planned Together

For most owners, the business is both an income source and a large share of net worth. A decision in one place tends to reach the other. Owner compensation changes the tax return. A retirement plan choice can affect what you owe for employees. A future sale shapes how much you need to save outside the business.

At the same time, keeping clear boundaries between personal and business accounts matters for record keeping and for liability protection. Planning together does not mean mixing the two. It means reviewing them side by side, ideally with your CPA and planner working from the same information. Our business owners page describes how our team approaches this.

Managing Irregular Income

Income that rises and falls makes budgeting harder. Practices that many owners find useful include:

  • Paying yourself a regular amount. Transfer a set draw or salary from the business account to your personal account on a schedule, and adjust it periodically.
  • Holding a reserve. Households with variable income often keep a larger cash reserve than those with steady paychecks. The right size depends on how volatile your revenue is and how quickly you could reduce expenses.
  • Saving in strong periods. Setting aside part of higher-income months can smooth the slower ones, though it requires discipline.

Taxes: Estimated Payments, Self-Employment Tax, and Entity Choice

Without an employer withholding taxes from a paycheck, owners are generally responsible for paying as they go.

  • Estimated payments. Self-employed individuals generally pay income tax and self-employment tax through quarterly estimated payments. The IRS explains the process on its estimated taxes page. How much to set aside depends on your income, deductions, and state, so a fixed percentage rule of thumb may miss the mark.
  • Self-employment tax. The rate is 15.3%, made up of 12.4% for Social Security and 2.9% for Medicare, generally applied to 92.35% of net earnings, with the Social Security portion subject to an annual wage limit. See the IRS overview.
  • Entity choice. A sole proprietorship, LLC, S corporation, and C corporation are taxed differently. An S corporation, for example, can change how income is split between salary and distributions, but owners must pay themselves reasonable compensation, and the choice adds administrative requirements. Whether a change helps depends on your numbers, so review it with your CPA before acting.
  • Timing. The timing of income and expenses, depreciation, and charitable giving can affect a given year's taxes. These decisions have trade-offs and are best considered before year-end. See our tax planning and tax preparation services.

State-level tax rules and any elections available to pass-through entities are also worth reviewing with your CPA each year.

Comparing Retirement Plans for Owners

Without an employer plan, owners can choose among several retirement accounts. The right one depends on whether you have employees, how much you want to save, and how much administration you are willing to handle.

General comparison for education, not a recommendation. Contribution limits and rules change every year; confirm current details with the IRS and your CPA. Employee coverage rules can apply.
Plan Often considered by How contributions work Trade-offs to weigh
SEP IRA Owners who want simple administration Employer contributions only, based on a percentage of compensation with an annual cap; self-employed owners use a modified calculation If you have eligible employees, you generally must contribute for them at the same percentage you contribute for yourself
Solo 401(k) Owners with no employees other than a spouse Combines an employee deferral with an employer contribution, which can allow a higher total at some income levels More setup and paperwork; not available in the same form once you hire employees
SIMPLE IRA Small businesses with employees Employee deferrals plus a required employer match or contribution Lower contribution limits than other plans, and the employer contribution is required
Profit-sharing or defined benefit plans Higher-income owners with stable profits who want to save more Employer-funded, with more complex design and funding rules Higher administrative cost and ongoing funding commitments that can be hard to reduce in a lean year

Retirement contributions also change your taxable income, which can affect other items such as health coverage subsidies and how much you owe for the year. Our retirement planning team reviews plan choices alongside your tax return. If you are within ten years of stepping back, our guide to managing tax brackets before RMDs covers the next stage.

Health Coverage

Owners without group coverage often buy through the New York State of Health marketplace or through the business. Some considerations:

  • Premium credits on the marketplace depend on household income, so income and retirement contributions can interact with the cost of coverage.
  • A high-deductible health plan can make you eligible for a Health Savings Account, which offers tax advantages if you meet the requirements. It also means a higher out-of-pocket exposure before coverage pays.
  • Self-employed health insurance premiums may be deductible in some situations. Confirm eligibility with your CPA.

Business Continuity and Succession

Succession planning starts earlier than most owners expect, because the options depend on the years available to prepare. Common paths include a transfer to family, a sale to a partner or key employee, a sale to an outside buyer, or a planned wind-down. Each has different tax, valuation, and timing considerations.

  • Build a business that can run without you. Documented processes and a second layer of leadership can widen your options.
  • Coordinate with your attorney. Buy-sell agreements, entity documents, and estate plans are drafted by an attorney. A financial plan can confirm they match your goals and cash-flow needs.
  • Plan personal finances ahead of a sale. The tax result of a sale and the income you will need afterward are worth modeling in advance.

Because a sale can create a large one-time income event, it often intersects with the topics in our high-net-worth planning guide.

Working With a Local Team

Many Long Island business owners meet with our Hauppauge team to coordinate these decisions in person. You can also see our Long Island financial advisor services overview. Our CFP® professionals, CPAs, and Enrolled Agents work side by side, so tax, retirement, and business questions are reviewed together. We are a fee-only fiduciary and do not earn commissions. Not sure what to ask before hiring anyone? Our fee-only fiduciary checklist can help.

An Annual Business Owner Checklist

  • Review this year's estimated payments against actual income
  • Meet with your CPA before year-end about timing of income and expenses
  • Confirm the retirement plan still fits your staffing and profit level
  • Check your cash reserve against current revenue volatility
  • Review health coverage and any HSA eligibility for next year
  • Update beneficiary designations and entity, buy-sell, and estate documents with your attorney
  • Revisit your succession or exit timeline and what it means for personal savings

Key Takeaway

The most useful planning for owners usually connects cash flow, taxes, retirement savings, and succession instead of handling each on its own. Reviewing them together each year can help each decision support the others.

Let's Start With a Conversation. No sales pitch. No obligation. Reach out to our team when you are ready.

Sources

Sources reviewed September 29, 2026. Tax rules and limits change. Educational article, not personalized investment, tax, or legal advice. Investing involves risk, including the potential loss of principal, and no strategy can guarantee a profit or protect against loss.

Frequently Asked Questions

What retirement plan options do business owners have?
Common options include a SEP IRA, a Solo 401(k) for owners with no employees other than a spouse, a SIMPLE IRA for small businesses with employees, and more complex profit-sharing or defined benefit plans. The right choice depends on staffing, income, how much you want to save, and administrative cost. Contribution limits change every year.
How does self-employment tax work?
The self-employment tax rate is 15.3%, made up of 12.4% for Social Security and 2.9% for Medicare. It generally applies to 92.35% of net earnings from self-employment, and the Social Security portion is subject to an annual wage limit. It is paid in addition to income tax, typically through quarterly estimated payments.
How much should a business owner set aside for taxes?
There is no single percentage. The amount depends on your income, deductions, entity type, and state. A CPA can estimate quarterly payments based on your actual numbers, and adjust them during the year.
When should a business owner start succession planning?
Earlier than most expect, because the options depend on the years available to prepare. A financial plan can model the personal cash-flow and tax effects of a transfer or sale, while an attorney prepares the legal documents.
Why does it help to have a CPA and financial planner work together?
Entity choice, owner compensation, retirement contributions, and a future sale all affect both the tax return and the long-term plan. When both professionals work from the same information, those effects can be reviewed together before decisions are made.

Talk it through

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Schedule a complimentary conversation with our team of CFP ® professionals, CPAs, and Enrolled Agents. No obligation, no sales pitch, just a calm look at how business owner tax and retirement planning fits into your specific plan.

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